<template>
  <h2>当前求和{{ sum }}</h2>
  <button @click="sum++">求和加一</button>
  <hr />
  <h2>姓名：{{ name }}</h2>
  <h2>年龄：{{ age }}</h2>
  <h2>薪水：{{ job.j1.salary }}</h2>
  <button @click="name += '!'">修改姓名</button>
  <button @click="age++">修改年龄</button>
  <button @click="job.j1.salary++">涨薪</button>
</template>

<script>
import { reactive, ref, toRef, toRefs, readonly, shallowReadonly } from "vue";
export default {
  name: "Demo",
  setup() {
    let sum = ref(0);
    let person = reactive({
      name: "张三",
      age: 99,
      job: {
        j1: {
          salary: 18,
        },
      },
    });

    person = readonly(person);
    person = shallowReadonly(person);

    return {
      sum,
      ...toRefs(person),
    };
  },
};
</script>

<style>
</style>
